Air heater and drier.



H. B. HUDEPOHL.

AIR HEATER AND D RiER.

APPLICATION FILED FEB. 19, 1916.

I1, fig 1 ,figfi Patented Apr. 3, 1917.

2 SHEETS-SHEET I.

H. B. HUDEPOHL.

AIR HEATER AND DRIER.

APPLICATION FILED FEB. 19. 19l6. 1321,8280 Patented Apr. 3,1917.

2 SHEETS-SHEET 2 fee tilt

HENRY B. HUDEPOHL, F MOUNT HEALTHY, OHIO. I

AIR HEATER AND DRIER.

Specification of tetters Patent.

Patented Apr. 3, 191?.

Application filed February 19, 1916. Serial No. 79,363. a

To all whom it may concern:

Be it known that I, HENRY B. HUnnroHL, a citizen of the United States. residing at Mount Healthy. in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Air Heaters and Driers; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in air heaters and driers' and the principal object of the device is to provide a means to heat and dry the air fed to the carbureter so as to insure the proper mixing of the air with the liquid before entering the manifold and combustion chamber of the engine.

Another object of the invention is to provide a device which is adapted for attachment to the exhaust pipe so as to utilize the heat radiating therefrom.

A still further object of the invention is to provide a device which may be easily and cheaply constructed and which may be "readlly put in place without necessitating any change in the exhaust pipe or the construction of the engine in any way.

With these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which Figure 1 is a fragmentary side view of a motor illustrating this improved device attached thereto.

Fig. 2 is a longitudinal sectional view through the attachment.

Fig. 3 is a bottom plan view of the upper section of the attachment.

F ig. 4 is a transverse sectional view on line -14 of Fig. 2.

Fig. 5 is a transverse sectional view on line 5-45 of Fig. 2, and

Fig. 6 is a detail perspective view on an enlarged scale of one of the bafiie plates.

Referring to the drawings the numeral 1 designates a motor of the ordinary construction provided with the usual intake manifold 2 and the exhaust manifold 3. The intake manifold 2 is provided with the usual pipe 4 leading to the carburetor 5 while the exhaust manifold has connected thereto the exhaust pipe 6 leading to a muffler or any other suitable reducing device.

The intake end of the carburetor 5 has connected thereto a hose or other flexible pipe 7, the opposite end of which is con-' nected to a suitable pipe 8 leading to the attachment designated generally by the numeral 9, which will be more fully hereinafter described. The attachment 9 com prises a pair of sections 10 and 11 each of which comprises a transversely semi-circular body having the flanges 12 formed at their edges which flanges are formed with alining apertures for the reception of the bolts 13 by means of which they are held in assembled positions. The ends of the semicircular bodies are provided with the semicircular end "plates 14, each of which is formed with a central semi-circular recess 15 for the reception of the exhaust pipe. The plates 14 are secured in place by suitable cap screws 16 and thus support the entire attachment in the proper position. Formed in the upper section 11 near one end is a plurality of intake openings 17 while a suitable outlet opening 18 is formed near the opposite end of the section and is surrounded by an internally screw threaded hollow boss 19 to which the pipe 8 is conpressure and sound nected. A suitable opening 20 is formed near the opening 18 and is provided on opposite sides with suitable guides 21 for guiding the sliding closure 22. This opening 20 is adapted to serve as an auxiliary air inlet so that a proper mixture of air and gas is insured.

Secured on the outer side of the section 11 and spaced upwardly therefrom is a semicircular hood 23, the open end of which is disposed rearwardly as clearly illustrated in Figs. 1 and 2. The forward end of the hood 23 is provided with the closure 24 having a flange 25 on its lower edge which flange is secured in any suitable manner to the outer side of the section 11.

In order to retard the passage of air through the device and insure the proper heating of the same. a suitable semi-circular guard 26 is provided and is provided at one end with an upturned flange 27 for engagement against the inner face of the section 11 while the opposite side edges thereof are provided with the outturned flanges 28 which as shown in the drawings are disposed between the flanges 12 and held in place by the bolts 13. The rear edge of the hood 26 terminates short of the rear plate 14 so as to be spaced therefrom a short distance to permit the passage of air into the heaters.

In order to insure the proper heating of the air a plurality of semi-circular battle vdation of the exhaust pipe (3.

plates 29 are provided, each of. which is formed centrally of its flattened edge with a semi-circular recess 30 for the accommo- Forincd centrally of the curved edge of the ballle plate is a suitable lip or flange 31 having an opening 32 formed therein for the reception-of a suitable rivet or other attaching means 33 by means of which the battle plates are'secured in place.

It will be apparent from the foregoing that in use on the suction stroke of the motor the air passes into the heater through the open end of the hood 23 and thence through the openings 17 and the space between the inner face of the section 11 and the hood 26 into the heater, thence passing forwardly around the battle plate in atortuous passage into the forward end of the heater from whence it passes through the opening 18 and pipe 8 to the carbureter. In this way it will be seen that warm dry air will be furnished to the carbureter. thereby increasing the efliciency thereof and allowing the air to more readily mix with the liquid.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the appended claims.

Vhat is claimed is 1. A device of the class described comprising a pair of semi-cylindrical sections having their lateral edges secured together, end plates secured to the sections, each end plate being provided with a recess, said recesses being adapted to fit around the exhaust pipe of the motor in connection with which the device is used, one of the sections being provided with a transverse row of inlet openings and having an outlet opening near its opposite end, a hood for partially inclosing the inlet opening, the open end of the hood being disposed rearwardly, a guard plate partially inclosing the openings and positioned on the inside of the sections to direct the inflowing air toward the rear end of the device and a plurality of battle plates secured to each section to form a tortuous passage and assist in drying the air passing therethrough.

2. In a device of the class described, a pair of semi-cylindrical sections, one of the sec tions being provided with a row of transverse apertures near its rear end and having an outlet aperture near its forward end, the lateral edges of said sections being secured together, a hood partially inclosing the inlet openings and being secured to the exterior of the sections, the open end of the hood being disposed rearwardly, aguard plate secured to the interior of the sections immediately beneath the apertures, the open end of said guard plate being disposed rearwardly, end plates on the sections, said end plates being recessed to accommodate the exhaust pipe of the engine in connection with which the device is used, a plurality of baflie plates within the device and secured to opposite sections to form a tortuous passage, the section having the inlet and outlet openings being provided with an auxiliary inlet opening and a sliding cover for closing said opening.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY B. HUDEPOHL.

Witnesses:

ELvm'r NoRnA, HENRY Norma. 

